From 9d6f980d19d9f59a359fe7c6eac867c10d67491e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Corentin=20No=C3=ABl?= <corentin@elementary.io>
Date: Fri, 29 Oct 2021 13:17:54 +0200
Subject: [PATCH] Handle signal to close Gala gracefully on Mutter 3.41

Closes #1258
---
 src/Main.vala | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/Main.vala b/src/Main.vala
index 474d917c..c98d39c8 100644
--- a/src/Main.vala
+++ b/src/Main.vala
@@ -42,7 +42,27 @@ namespace Gala {
             return Posix.EXIT_FAILURE;
         }
 
+        /* Intercept signals */
         ctx.set_plugin_gtype (typeof (WindowManagerGala));
+        Posix.sigset_t empty_mask;
+        Posix.sigemptyset (out empty_mask);
+        Posix.sigaction_t act = {};
+        act.sa_handler = Posix.SIG_IGN;
+        act.sa_mask = empty_mask;
+        act.sa_flags = 0;
+
+        if (Posix.sigaction (Posix.SIGPIPE, act, null) < 0) {
+            warning ("Failed to register SIGPIPE handler: %s", GLib.strerror (GLib.errno));
+        }
+
+        if (Posix.sigaction (Posix.SIGXFSZ, act, null) < 0) {
+            warning ("Failed to register SIGXFSZ handler: %s", GLib.strerror (GLib.errno));
+        }
+
+        GLib.Unix.signal_add (Posix.SIGTERM, () => {
+            ctx.terminate ();
+            return GLib.Source.REMOVE;
+        });
 #else
         unowned OptionContext ctx = Meta.get_option_context ();
         ctx.add_main_entries (Gala.OPTIONS, null);